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Improvements to local repair and DAO handling.

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This commit is contained in:
nvt-se 2010-05-24 16:38:56 +00:00
parent f882901bf6
commit c5d1c3ea27
4 changed files with 39 additions and 36 deletions
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7
core/net/rpl/rpl-dag.c
View file

@ -32,7 +32,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rpl-dag.c,v 1.6 2010/05/10 13:46:35 nifi Exp $
* $Id: rpl-dag.c,v 1.7 2010/05/24 16:38:56 nvt-se Exp $
*/
/**
* \file
@ -523,6 +523,11 @@ rpl_process_dio(uip_ipaddr_t *from, rpl_dio_t *dio)
if(RPL_PARENT_COUNT(dag) > 1) {
/* Since we have alternative parents, we can simply drop this one. */
rpl_remove_neighbor(dag, n);
n = rpl_find_best_parent(dag);
if(n != NULL) {
rpl_set_default_route(dag, &n->addr);
}
return;
} else if(dag->of->increment_rank(dio->dag_rank, n) <= dag->min_rank + dag->max_rankinc) {
dag->rank = dag->of->increment_rank(dio->dag_rank, n);
PRINTF("RPL: New rank is %hu, max is %hu\n",

11
core/net/rpl/rpl-icmp6.c
View file

@ -33,7 +33,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rpl-icmp6.c,v 1.8 2010/05/19 16:16:57 joxe Exp $
* $Id: rpl-icmp6.c,v 1.9 2010/05/24 16:38:56 nvt-se Exp $
*/
/**
* \file
@ -374,18 +374,19 @@ dao_input(void)
return;
}
if(rank < dag->rank) {
PRINTF("RPL: Incoming DAO rank is %u, my rank is %u\n",
(unsigned)rank, (unsigned)dag->rank);
if(rank < dag->rank) {
return;
}
PRINTF("RPL: DAO rank: %u, lifetime: %lu, prefix length: %u\n",
(unsigned)rank, (unsigned long)lifetime, (unsigned)prefixlen);
memset(&prefix, 0, sizeof(prefix));
memcpy(&prefix, buffer + pos, prefixlen / CHAR_BIT);
PRINTF("RPL: DAO rank: %u, lifetime: %lu, prefix length: %u",
(unsigned)rank, (unsigned long)lifetime, (unsigned)prefixlen);
PRINTF("\n");
if(lifetime == ZERO_LIFETIME) {
/* No-DAO received; invoke the route purging routine. */
rep = uip_ds6_route_lookup(&prefix);

12
core/net/rpl/rpl-timers.c
View file

@ -32,7 +32,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rpl-timers.c,v 1.4 2010/05/09 19:12:47 joxe Exp $
* $Id: rpl-timers.c,v 1.5 2010/05/24 16:38:56 nvt-se Exp $
*/
/**
* \file
@ -101,9 +101,10 @@ new_dio_interval(rpl_dag_t *dag)
/* keep some stats */
dag->dio_totint++;
dag->dio_totrecv += dag->dio_counter;
ANNOTATE("#A rank=%d,ints=%d,snd=%d,rcv=%d,cint=%d\n", dag->rank,
ANNOTATE("#A rank=%d,stats=%d %d %d %d,color=%s\n", dag->rank,
dag->dio_totint, dag->dio_totsend,
dag->dio_totrecv,dag->dio_intcurrent);
dag->dio_totrecv,dag->dio_intcurrent,
dag->rank == ROOT_RANK ? "BLUE" : "ORANGE");
#endif /* RPL_CONF_STATS */
/* reset the redundancy counter */
@ -184,7 +185,7 @@ handle_dao_timer(void *ptr)
dag = (rpl_dag_t *)ptr;
if (!dio_send_ok && uip_ds6_get_link_local(ADDR_PREFERRED) == NULL) {
PRINTF("RPL: postpone DAO transmission... \n");
PRINTF("RPL: Postpone DAO transmission... \n");
ctimer_set(&dag->dao_timer, CLOCK_SECOND, handle_dao_timer, dag);
return;
}
@ -196,7 +197,7 @@ handle_dao_timer(void *ptr)
PRINTF("RPL: handle_dao_timer - sending DAO\n");
dao_output(n, DEFAULT_ROUTE_LIFETIME);
} else {
PRINTF("RPL: could not find any best parent.. \n");
PRINTF("RPL: Could not find a parent to send a DAO to \n");
}
ctimer_stop(&dag->dao_timer);
}
@ -205,6 +206,7 @@ void
rpl_schedule_dao(rpl_dag_t *dag)
{
clock_time_t expiration_time;
expiration_time = etimer_expiration_time(&dag->dao_timer.etimer);
if(!etimer_expired(&dag->dao_timer.etimer) &&

31
core/net/rpl/rpl.c
View file

@ -32,7 +32,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rpl.c,v 1.2 2010/05/18 16:43:56 nvt-se Exp $
* $Id: rpl.c,v 1.3 2010/05/24 16:38:56 nvt-se Exp $
*/
/**
* \file
@ -84,13 +84,20 @@ rpl_add_route(rpl_dag_t *dag, uip_ipaddr_t *prefix, int prefix_len,
{
uip_ds6_route_t *rep;
if((rep = uip_ds6_route_lookup(prefix)) == NULL) {
rep = uip_ds6_route_lookup(prefix);
if(rep == NULL) {
if((rep = uip_ds6_route_add(prefix, prefix_len, next_hop, 0)) == NULL) {
PRINTF("RPL: No space for more route entries\n");
return NULL;
}
} else {
PRINTF("RPL: Updated the next hop for prefix ");
PRINT6ADDR(prefix);
PRINTF(" to ");
PRINT6ADDR(next_hop);
PRINTF("\n");
uip_ipaddr_copy(&rep->nexthop, next_hop);
}
rep->state.dag = dag;
rep->state.lifetime = DEFAULT_ROUTE_LIFETIME;
rep->state.learned_from = RPL_ROUTE_FROM_INTERNAL;
@ -100,7 +107,7 @@ rpl_add_route(rpl_dag_t *dag, uip_ipaddr_t *prefix, int prefix_len,
PRINTF("/%d via ", prefix_len);
PRINT6ADDR(next_hop);
PRINTF("\n");
}
return rep;
}
/************************************************************************/
@ -110,7 +117,6 @@ neighbor_callback(const rimeaddr_t *addr, int known, int etx)
uip_ipaddr_t ipaddr;
rpl_dag_t *dag;
rpl_neighbor_t *parent;
uip_ds6_route_t *rep;
uip_ip6addr(&ipaddr, 0xfe80, 0, 0, 0, 0, 0, 0, 0);
uip_ds6_set_addr_iid(&ipaddr, (uip_lladdr_t *)addr);
@ -119,22 +125,11 @@ neighbor_callback(const rimeaddr_t *addr, int known, int etx)
PRINTF(" is %sknown. ETX = %d\n", known ? "" : "no longer ", etx);
dag = rpl_get_dag(RPL_DEFAULT_INSTANCE);
if(dag == NULL) {
if(dag == NULL || (parent = rpl_find_neighbor(dag, &ipaddr)) == NULL) {
return;
}
parent = rpl_find_neighbor(dag, &ipaddr);
if(parent == NULL) {
rep = uip_ds6_route_lookup(&ipaddr);
if(rep != NULL) {
if(!known) {
rep->state.lifetime = DAO_EXPIRATION_TIMEOUT;
rep->state.saved_lifetime = rep->state.lifetime;
} else {
rep->state.lifetime = rep->state.saved_lifetime;
}
}
} else if(!known) {
PRINTF("RPL: Removing parent ");
PRINT6ADDR(&parent->addr);
PRINTF(" because of bad connectivity (ETX %d)\n", etx);